Ka whakauruhia e tēnei karetao whakarewa gantry cantilever te hangarau karetao matatau ki te hoahoa hanganga cantilever gantry, e tuku ana i te tino tika, te tino whai hua me te mahi whakarewa aunoa katoa mō ngā raina whakaputa ahumahi taumaha.
He hanganga pumau tōna, he kaha te kaha ki te pikau kawenga, he whānui te kapinga mahi, he tino pai mō ngā mahi roa, ngā anga, ngā hanganga maitai me ngā mahi whakarewa mīhini hangarau.
He pūnaha tūnga whakarewa tino tika me te raupapa whakahaere nekehanga atamai te taputapu, ka whakarite kia pumau te hanganga hononga whakarewa, kia ōrite te kounga whakarewa me te iti o te hapa rerekē, kia whakaitihia ai ngā hapa whakahaere ā-ringa.